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2 Sheets-Sheet 1.

(No Model.)

I. E. SOHMITT. CYLINDER ADJUSTMENT FOR SANDERS.

Patented Dec. 14,1897.

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(No Model.) 2 She etsSheet 2. F. E. SCHMITT. CYLINDER ADJUSTMENT FOR SANDERS.

UNITED STATES PATENT OFFICE.

FREDERICK E. SOHMITT, OF GREEN BAY, WISCONSIN, ASSIGNOR TO THE MILWAUKEE SANDER MANUFACTURING COMPANY, OF SAMEPLAGE.

CYLINDER ADJUSTMENT FOR SANDERS.

SPECIFICATION forming part of Letters Patent No. 595,445, dated December 14, 1897. Application filed July 6, 1897. Serial No. 643,551. (No model.)

To all whom it'may concern:

Be it known that I, FREDERICK E. SCHMITT, of Green Bay, in the county of Brown and State of Wisconsin, have invented certain new and useful Improvements in Cylinder Adjustments for Sanders; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it pertains to make and use the same, reference being had to the accompanying drawings,

and to the letters of reference marked thereon, which form a part of this specification.

The main object of my invention is to easily and accurately adjust the cylinders of sandpap erin g or polishing machines with reference to the work-supporting beds.

It consists of certain novel features in the adjusting mechanism, as hereinafter particularly described, andpointed out in the claims.

In the accompanying drawings like letters designate the same parts in the several figures.

Figure 1 is a front elevation of a polishing drum or cylinder of a sandpapering-machine in connection with its journal-boxes and its adjusting connections, which are shown in vertical section parallel with the axis of the cylinder on the line 1 1, Fig. 2. Fig. 2 is an end elevation of the cylinder and .its supporting and adjusting connections as viewed from the left with reference to Fig. 1. Fig. 3 is a vertical section of the supporting and adj usting connections at the opposite end of the cylinder on theline 3 3, Fig. 4. Fig. 4 is a horizontal section on the line 4 4,'Figs. 2 and 3'; and Fig. 5 is a perspective view of one of the wedge or tongue blocks for adjusting the cylinder-boxes vertically.

A designates a polishing drum or cylinder, the shaft a of which is revolubly supported in journal boxes B B. These boxes are formed or provided on their under sides with stems b b, which are fitted in sockets or sleeves O 0, formed with or attached to the sides D D of the main frame.

E E are blocks, preferably of rectangular shape and formed or provided on one side with tongues e e, which are longitudinally inclined and transversely beveled, as shown in Figs. 3 and 5. They are fitted to slide endwise in transverse openings formed in the sleeves O or sides Dofthe frame, and

their tongues e are fitted to engage with corresponding grooves in the stems b of the journal-boxes. Said blocks are mounted upon a bar F, which passes through longitudinal holes therein parallel with the axis of the cylinder. permanently fastened upon said bar, While the block E is adjustable lengthwise thereon within certain limits. For this purpose a screw 6' is threaded'in a bore of said block parallel with the bar F and bears at its ends, which project therefrom, against fixed collars or shoulders f f on said bar, as shown in Figs. 1 and 4. The openings in which said blocks are held are preferably lined with Babbitt metal and are provided with hearing plates or washers G G, which are sunk into the Babbitt metal and bear against the backs of said blocks, as shown in Figs. 3 and 4.

g g are adj usting-screws threaded in the sockets or frame at right angles to the bar F and engaging at their tips with said bearingplates. They serve with said plates to adjust the blocks E E toward the box-stems for taking up wear or play between the tongues e and the grooves with which they engage in said stems.

At one end, preferably that next to the block E, the bar F is threaded and is engaged by the internally-threaded hub of a wormgear H, through which it passes and which has a fixed bearing on the machine-frame by which it is restrained from endwise movement. This worm-gear is engaged by a Worm I, fixed upon a shaft J, extending lengthwise of the machine along one side thereof and provided at any convenient point, at the front of the machine or elsewhere within reach of the operator, with a crank or handwheel (not shown) for turning it.

As machines of this kind are ordinarily supplied with a number of polishing drums or cylinders, for the independent adjustment of which it is necessary to provide, a number of worm-shafts are arranged concentrically with each other, as shown in Figs. 1 and 2, the outer shaft or shafts being tubular, so as to bring the cranks or hand-wheels by which they are operated close together and all within easy reach of the operator who stands at the front of the machine. I make no claim, however, to this particular feature of the ad- The block E is pinned or otherwise,

j usting mechanism, as it constitutes the subject-matter of a patent heretofore issued to me, No. 525,472, dated September 4, 1894, and I have explained it herein only as it relates to my present improvements.

My improved adjusting mechanism, as hereinbefore described, operates as follows: To true or level the cylinder with respect to the bed through which it projects, the block E is adjusted lengthwise of the bar F by means of the screw e, which is squared at one end for this purpose, thereby raising or lowering, as required, one of the boxes B and one end of the cylinder independently of the other. \Vhen the cylinder has been once leveled or adjusted with reference to the bed, it is raised or lowered to cause it to project more or less above the bed by turning the proper worm-shaft J, which operates through the bar F to move the blocks E E longitudinally, and thus simultaneously and correspondingly raise or lower both of the journalboxes B B.

It will be observed that provision for taking up play or wear is made in all parts of the adjusting mechanism which are subjected to wear and would affect the operation of the machine. Thus the worm-gear H is secured in its bearing h by a collar h and set-screw, whereby any end play of said gear may be taken up by setting said collar up to the bearing 7?. upon the hub of the gear, and any play between the adj llShlIlg-SCIGW c and the collars ff may be taken up by setting one of the collars toward the other. It will also be observed that the tongues e afford ample bearing-surfaces for the firm and steady support of the cylinder and its bearings, the weight of which is entirely carried thereby.

I claim- 1. The combination with a cylinder of a polishing-machine and its journal-boxes which have vertical stems fitted in sleeves or sockets of the frame, of blocks fitted in transverse openings in the frame and having inclined tongues engaging corresponding transverse grooves in said stems and means for moving said blocks endwise whereby the boxes and the cylinders carried thereby are adjusted, substantially as and for the purposes set forth.

2. The combination witha cylinder of apolishing-machine and its journal-boxes which have vertical stems fitted in sleeves or sockets of the frame, of a bar arranged parallel with the cylinder, and provided with blocks which are fitted and movable endwise in transverse openings in the frame and have longitudinally-inclined tongues engaging corresponding grooves in the box-stems, and means of adjusting said bar lengthwise, substantially as and for the purposes set forth.

3. The combination withacylinder of apolishing-machine and its journal-boxes which have vertical stems fitted in sleeves or sockets of the frame, of a longitudinally-adjustable bar arranged parallel with the cylinder,

blocks mounted on said bar, fitted in transverse openings in the frame and having inclined tongues which engage corresponding grooves in the box-stems, one of said blocks being adjustable lengthwise of said bar independently of the other, substantially as and for the purposes set forth.

4. The combinationwithacylinderof apolishing-machine and its journal-boxes which have vertical stems fitted in sleeves or sockets of the frame, of a longitudinally-adjustable bar parallel with the cylinder and obliquely-tongued blocks mounted upon said bar and engaging corresponding grooves in the box-stems, one of said blocks being provided with an adjusting screw passing through it parallel with said bar and engagin g at its ends with fixed collars or shoulders on said bar, substantially as and for the purposes set forth.

5. The combination with a; cylinderof a polishing-machine and its journal-boxes which have vertical stems fitted in sleeves or sockets of the frame, of blocks fitted in transverse openings in the frame and having longitudinally-inclined and transversely-beveled tongues which engage corresponding grooves in the box-stems, means of adjusting said blocks endwise, and means of adjusting them toward said stems to take up wear and play between the tongues and the grooves with which they engage, substantially as and for the purposes set forth.

6. The combination withacylinder of apolishing-machine and its j ournal-boxes which have stems fitted in vertical sleeves or socketsof the frame, of blocks fitted to slide endwise in transverse openings in the frame and having longitudinally inclined and transversely-beveled tongues which engage with corresponding grooves in the box-ste1ns,plates bearing against the'backs of said blocks and adj usting-screws for advancing said plates toward the box-stems and taking up wear or play between said tongues and the grooves in which they work, substantially as and for the purposes set forth.

7. The combination withacylinder of apolishing-machine and its journal-boxes which have stems fitted in vertical sleeves or sockets of the frame, of alongitudinally-movable bar supported parallel with the cylinder and provided with inclined tongues which engage corresponding grooves in the box-stems, a worm-gear threaded on said bar and having a bearing on the frame which restrains it from endwise movement, and a worm engaging said worm-gear and mounted on a shaft arranged lengthwise of the machine, substantially as and for the purposes set forth.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

FREDERICK E. SOI-IMITT.

\Vitnesses:

CHAS. L. Goss, M. L. EMERY. 

